trying to block new taxes from taking effect on their products because of the new health care reform law. a package of tax hikes and spending cuts known as the fiscal cliff will take effect in january unless congress can do something to balance the budget. >>> happening right now workers at walmart stores starting to walk off the job during the big holiday shopping rush. i want to take you to texas just got this in. workers walked off the job right as shoppers were getting ready to go into the store. other protests are planned in walmarts throughout the bay area. employees say they want walmart to pay better wages. while some say they will still shop at al port others say -- walmart others say they will support those workers. >> if they walk out, i'm not going to shop until they settle with them. you can bet that. >> the picketers were planning to protest outside of sam club stores. >>> in sacramento there were very tense moments for shoppers. you can see there the cameras are rolling when one k-mart shopper threatened to stab others were people started shoving to get inside that store.